package com.mo.core.util;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
@Component 
public class SpringUtil  implements ApplicationContextAware {
	 private static ApplicationContext applicationContext;
	 @Override  
	    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
	        if(SpringUtil.applicationContext == null) {
	            SpringUtil.applicationContext = applicationContext;
	        }

	        System.out.println("---------------------------------------------------------------------");

	        System.out.println("---------------com.mo.core.util.SpringUtil------------------------------------------------------");

	        System.out.println("========ApplicationContext配置成功,在普通类可以通过调用SpringUtils.getAppContext()获取applicationContext对象,applicationContext="+SpringUtil.applicationContext+"========");

	        System.out.println("---------------------------------------------------------------------");
	    }

	    //获取applicationContext
	    public static ApplicationContext getApplicationContext() {
	        return applicationContext;
	    }

	    //通过name获取 Bean.
	    public static Object getBean(String name){
	        return getApplicationContext().getBean(name);
	    }

	    //通过class获取Bean.
	    public static <T> T getBean(Class<T> clazz){
	        return getApplicationContext().getBean(clazz);
	    }

	    //通过name,以及Clazz返回指定的Bean
	    public static <T> T getBean(String name,Class<T> clazz){
	        return getApplicationContext().getBean(name, clazz);
	    }
}

